GC-MS测定环己烷氧化液中有机酸和酯的含量  

Determination of organic acid and ester contents in cyclohexane oxidation liquid by gas chromatography-mass spectrometry

作　　者：粟晶[1] 何曼娥[2] 

机构地区：[1]中国石化集团资产经营管理有限公司巴陵石化分公司技术中心,湖南岳阳414014 [2]中国石油化工股份有限公司巴陵分公司化肥事业部,湖南岳阳414007

出　　处：《合成纤维工业》2008年第4期61-63,共3页China Synthetic Fiber Industry

摘　　要：采用气相色谱-质谱联用法(GC-MS)测定环己烷氧化液中的有机酸和有机酯的含量。在GC-MS分析条件下环己烷氧化液直接进样,通过毛细管柱DB-1701,60 m×0.15 mm×0.25μm分离,由电子轰击源选择离子监测模式下进行检测。结果表明:有机酸和有机酯的标准曲线相关系数大于0.98,相对标准偏差均小于7.0%,回收率为94.9%～98.6%。A method of determining organic acid and ester contents in cyclohexane oxidation liquid was established by gas chromatography-mass spectrometry （GC-MS）. The cyclohexane oxidation liquid was directly injected and separated with a capillary column DB-1701 of 60 m × 0.25 mm× 0.25 μm under GC-MS analytic conditions. The measurement was performed by using electron impaction source under selective 1on monitoring mode. The results showed that the correlation coefficient of calibration curve was above 0.98 for organic acid and ester,the relative starjdard deviation below 7.0% ,and the recovery rate from 94. 9% to 98.6%.

关 键 词：环己烷 气相色谱 氧化液 质谱 有机酸 有机酯 

分 类 号：TQ231.14[化学工程—有机化工]